/**
 * Copyright (c) 2013-2022, Alibaba Group Holding Limited;
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * </p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.aliyun.polardbx.cdc.qatest.random;

import org.apache.commons.lang.RandomStringUtils;
import org.apache.commons.lang.math.RandomUtils;

public class RandomUtil {
    public static String randomIdentifier() {
        return RandomStringUtils.randomAlphanumeric(nextPositiveInt(8, 16));
    }

    public static int nextInt(int length) {
        return RandomUtils.nextInt(length);
    }

    public static long nextLong() {
        return RandomUtils.nextLong();
    }

    public static int nextPositiveInt(int min, int n) {
        int res = RandomUtils.nextInt(n);
        return Math.max(res, min);
    }

    public static boolean randomBoolean() {
        return RandomUtils.nextBoolean();
    }
}
